Re-Entrant Type Relaxor Behavior In (1-X)Batio3-Xbisco(3) Solid Solution
APPLIED PHYSICS LETTERS(2008)
Abstract
The solid solution of (1-x)BaTiO3-xBiScO(3) was synthesized by solid state reaction and its dielectric properties were studied by impedance spectroscopy. A dielectric anomaly was found in the temperature ranges of -30-13 degrees C and -60-20 degrees C for 0.95BaTiO(3)-0.05BiScO(3) and 0.90BaTiO(3)-0.10BiScO(3), respectively. The frequency dependence of the anomaly exhibits dielectric relaxation satisfying the Vogel-Fulcher law, indicating relaxorlike behavior. The relaxor state in the (1-x)BaTiO3-xBiScO(3) solid solution occurs after the ferroelectric phase transition upon cooling, indicating a re-entering phenomenon. Piezoresponse force microscopic studies show that the domain wall density decreases with the addition of BiScO3. The substitution of BiScO3 also results in some no-phase-contrast areas in the domain structure image, which grow with the increasing BiScO3 amount. Decent piezoelectric hysteresis loops were obtained in these areas. The correlation between the peculiar domain structure and relaxor behavior suggests that the no-phase-contrast areas are characteristics of the domain structure of the re-entering relaxor system. (C) 2008 American Institute of Physics.
MoreTranslated text
Key words
dielectric loss,impedance spectroscopy,domain wall,hysteresis loop,dielectric properties,satisfiability,phase contrast,phase transition,solid solution
AI Read Science
Must-Reading Tree
Example
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined